Microfluidic production of droplet pairs |
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Authors: | Frenz Lucas Blouwolff Joshua Griffiths Andrew D Baret Jean-Christophe |
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Institution: | Institut de Science et d'Ingenierie Supramoleculaires (ISIS), Universite Louis Pasteur, CNRS UMR 7006, Strasbourg, France. |
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Abstract: | We study a microfluidic dual nozzle for the production of water-in-oil droplet pairs. Droplets are paired by the hydrodynamic coupling of two nozzles over a wide range of aqueous and oil flow rates provided that they are larger than the channel dimensions. The droplet production frequencies and volumes are related to the flow rates through a single, experimentally determined power-law. The data are in good agreement with a model based on a geometrical decomposition of the dual nozzle leading to a general equation of droplet frequencies as a function of the various flow rates. |
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